We have such a blacklist in our actual implementation but it didn't find its way into this reservation page. We won't actually be letting people use those names.

For people who're only looking to reserve one subdomain - this might cause an issue. They might think they got `website.workers.dev` when they would have been equally happy with `awesomewebsite.workers.dev`.

Good advice. Back when I ran a small ISP a customer asked to register gov.com and we got it! Soon after I wondered why my DNS server was bogging down. There were hundreds of requests per second to whitehouse.gov.com. We got the NSF to block that from ever happening again.